T-cell protein tyrosine phosphatase: A role in inflammation and autoimmunity

Autor: Emma I. Chistiakova, Dimitry A. Chistiakov
Rok vydání: 2010
Předmět:
Zdroj: International Journal of Diabetes Mellitus. 2(2):114-118
ISSN: 1877-5934
DOI: 10.1016/j.ijdm.2010.05.012
Popis: A cDNA of PTPN2 encoding for T-cell protein tyrosine phosphate (TC-PTP) was isolated and characterized as long as 20 years ago. However, findings suggesting a potentially exciting role of this enzyme in general autoimmunity have only recently been obtained. Genome-wide association scans of the human genome revealed the involvement of PTPN2 in susceptibility to a several autoimmune disorders such as Crohn’s disease, type 1 diabetes, and Graves’ disease. Functional studies in immune cells revealed a key role of this enzyme in down-regulation of cytokine expression and inflammatory response, which provides an essential background to explaining the pathophysiological role of TC-PTP in autoimmunity. Thus, in addition to PTPN22 , PTPN2 is likely to represent a second member of the broad family of non-receptor PTPs contributing to general autoimmunity.
Databáze: OpenAIRE